A DDCMP port entity represents an access point to the Data Link layer
   service offered by ddcmp.  Ports are created and deleted automatically when
   a client of DDCMP uses the link.

1  –  status

     CLIENT

         Name of the client entity.

     LINK

         Name of the DDCMP link that the client is using.

     LOGICAL STATION

         Name of the DDCMP link logical station supplied by the client when the
 	port was opened.

     STATE

         State of the port.

 	OPEN -          The port is assigned to a client.

 	OPEN DISABLED - The port is assigned to a client, but the link or
 	                logical station entity used by the port is disabled.

 	CALL ATTACHED - The port is assigned to a client and the link is
 	                associated with the current call on the line. Applies
 	                only when the link operates over a switched line.

     TYPE

         Type of port.

          NORMAL -   For normal data communications.

          SERVICE -  For service operations. This is the value that modules